The words of wisdom imparted upon a young and impressionable Daniel Radcliffe by Donald Trump will come as a surprise to absolutely no one.

The Harry Potter star was appearing on Late Night with Seth Meyers when he recalled the first time he met the current presidential candidate, setting the scene: "It was my first time in New York and I was doing the Today Show.

"And I was a really nervous 11-year-old, never been on live TV before, and terrified. And he was a guest on it and presumably somebody said, 'Do you wanna meet the kid who plays Harry Potter?'

"So they marched me over to him and I had some idea of who he was and he said, 'How are you?', and I said, 'I'm really nervous and I don't know what to talk about on the show', and he said, 'You just tell them you met Mr Trump'."

At this, the audience and host Meyers burst into laughter, with an incredulous Radcliffe continuing: "To this day I can't even relate to that level of confidence.

The 26-year-old actor is currently starring on Broadway in Privacy, and has revealed that he asks audience members to keep their phones on, explaining: "The show is about the nature of privacy in a post-Edward Snowden world, and there's a lot of interactions on stage that we want people to be a part of. You can email stuff to us during the play.

"I don't want to say too much, but if we pull it off it's going to be really cool and unique."